12111003110221 has 8 divisors (see below), whose sum is σ = 12123697905504. Its totient is φ = 12098308773840.

The previous prime is 12111003110189. The next prime is 12111003110231. The reversal of 12111003110221 is 12201130011121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111003110221 - 2⁵ = 12111003110189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111003110195 and 12111003110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111003110231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87512146 + ... + 87650428.

It is an arithmetic number, because the mean of its divisors is an integer number (1515462238188).

Almost surely, 2^{12111003110221} is an apocalyptic number.

It is an amenable number.

12111003110221 is a deficient number, since it is larger than the sum of its proper divisors (12694795283).

12111003110221 is an equidigital number, since it uses as much as digits as its factorization.

12111003110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229451.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12111003110221 its reverse (12201130011121), we get a palindrome (24312133121342).

The spelling of 12111003110221 in words is "twelve trillion, one hundred eleven billion, three million, one hundred ten thousand, two hundred twenty-one".